Porvoo (IPA: [ˈporʋoː]) in Finnish or Borgå in Swedish, is a municipality situated on the southern coast of Finland approximately 50 kilometres east of Helsinki. The town received its name from a Swedish earth fortress near the river Porvoonjoki which flows through the town (Swedish Borgå, borg meaning castle and å river). Porvoo is one of the six medieval towns in Finland, first mentioned as a city in texts from 14th century. Porvoo is the seat of the Swedish speaking Diocese of Borgå of the Evangelical Lutheran Church of Finland.